EXTSW .632” ID x 1.990" OD x 3/16" Thick 316 Stainless Washer 3/4" ID 316 stainless washer 488") OD x 2" long

488") OD x 2" long 316 stainless spacer

EXTSW 5/16” ID x 11/16” x 2" thick 316 Alloy Stainless Steel  Spacers

EXTSW 1/2” ID x 1” x 2 1/4" thick 304 Stainless Spacer

007" ID x 1 3/4” OD x 1 1/4” long 316 alloy stainless shaft spacer

If some other company doesn't tell you the specific alloy

EXTSW .632” ID x 1.990" OD x 3/16" Thick 316 Stainless Washer 3/4" ID 316 stainless washer 488") OD x 2" longEXTSW 5 8" ID x 2" OD x 3 16" Thick 316 Stainless Washer Actual size . 632" ID x 1. 990" OD x . 188" Thick (+ . 003" on all dimensions) . 030 inch Radius OD slightly countersunk ID (no sharp edges) Made in USA. 316 Stainless has the ULTIMATE corrosion resistance.